JAMIA 2025 — Mathematics PYQ
JAMIA | Mathematics | 2025If A is an invertible matrix, then A−1×A=
Choose the correct answer:
- A.
1
(Correct Answer) - B.
A
- C.
A2
- D.
0
1
Explanation
Mathematical Representation:
A−1×A=I
Iska Matlab Kya Hai?
Jaise kisi number ko uske reciprocal (ulta) se multiply karne par 1 milta hai:
5×51=1
Waisa hi matrices ke case mein hota hai:
A×A−1=I
Yahan I (Identity Matrix) ko matrix ka 1 maana jata hai.
Final Answer:
Option ke hisaab se sahi answer hai:
1 (Identity Matrix I)
Explanation
Mathematical Representation:
A−1×A=I
Iska Matlab Kya Hai?
Jaise kisi number ko uske reciprocal (ulta) se multiply karne par 1 milta hai:
5×51=1
Waisa hi matrices ke case mein hota hai:
A×A−1=I
Yahan I (Identity Matrix) ko matrix ka 1 maana jata hai.
Final Answer:
Option ke hisaab se sahi answer hai:
1 (Identity Matrix I)